Duplicates that aren't?

I have multiple files that were scanned different days but added at the same time that are showing as duplicate files in DT. If I get Info on one of the files it says there are 26 duplicates!

How can I make them-non-duplicates at this point?

Also, how did this happen? I’ve used DT for years and this is a first.

OK, I created a Smart Folder and found all the 26 dupes that were all over the database. I then copied them to a folder for exporting. Then re-imported them. No dupe issues now.